結果
問題 | No.1512 作文 |
ユーザー | tenten |
提出日時 | 2023-08-04 13:05:04 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 631 ms / 2,000 ms |
コード長 | 3,135 bytes |
コンパイル時間 | 2,911 ms |
コンパイル使用メモリ | 95,736 KB |
実行使用メモリ | 121,228 KB |
最終ジャッジ日時 | 2024-04-22 10:43:02 |
合計ジャッジ時間 | 11,691 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 55 ms
50,708 KB |
testcase_01 | AC | 55 ms
50,500 KB |
testcase_02 | AC | 55 ms
50,472 KB |
testcase_03 | AC | 54 ms
50,304 KB |
testcase_04 | AC | 525 ms
86,492 KB |
testcase_05 | AC | 518 ms
85,784 KB |
testcase_06 | AC | 506 ms
85,956 KB |
testcase_07 | AC | 516 ms
84,988 KB |
testcase_08 | AC | 490 ms
85,404 KB |
testcase_09 | AC | 108 ms
52,160 KB |
testcase_10 | AC | 110 ms
52,120 KB |
testcase_11 | AC | 108 ms
52,096 KB |
testcase_12 | AC | 107 ms
52,300 KB |
testcase_13 | AC | 109 ms
52,304 KB |
testcase_14 | AC | 145 ms
55,060 KB |
testcase_15 | AC | 137 ms
55,000 KB |
testcase_16 | AC | 135 ms
55,176 KB |
testcase_17 | AC | 137 ms
55,116 KB |
testcase_18 | AC | 145 ms
55,196 KB |
testcase_19 | AC | 147 ms
55,292 KB |
testcase_20 | AC | 138 ms
55,076 KB |
testcase_21 | AC | 59 ms
50,572 KB |
testcase_22 | AC | 56 ms
50,464 KB |
testcase_23 | AC | 61 ms
50,704 KB |
testcase_24 | AC | 62 ms
50,740 KB |
testcase_25 | AC | 62 ms
50,464 KB |
testcase_26 | AC | 57 ms
50,572 KB |
testcase_27 | AC | 54 ms
50,012 KB |
testcase_28 | AC | 54 ms
50,228 KB |
testcase_29 | AC | 55 ms
50,484 KB |
testcase_30 | AC | 54 ms
50,360 KB |
testcase_31 | AC | 56 ms
50,676 KB |
testcase_32 | AC | 56 ms
50,548 KB |
testcase_33 | AC | 56 ms
50,120 KB |
testcase_34 | AC | 62 ms
50,368 KB |
testcase_35 | AC | 111 ms
52,064 KB |
testcase_36 | AC | 109 ms
52,248 KB |
testcase_37 | AC | 106 ms
52,976 KB |
testcase_38 | AC | 109 ms
52,184 KB |
testcase_39 | AC | 119 ms
52,312 KB |
testcase_40 | AC | 631 ms
121,228 KB |
testcase_41 | AC | 401 ms
117,804 KB |
ソースコード
import java.io.*; import java.util.*; import java.util.stream.*; public class Main { static ArrayList<Word> list = new ArrayList<>(); static int[][] dp; public static void main(String[] args) throws Exception { Scanner sc = new Scanner(); int n = sc.nextInt(); for (int i = 0; i < n; i++) { char[] inputs = sc.next().toCharArray(); if (isSorted(inputs)) { list.add(new Word(inputs[0] - 'a', inputs[inputs.length - 1] - 'a', inputs.length)); } } dp = new int[list.size()][26]; for (int[] arr : dp) { Arrays.fill(arr, -1); } Collections.sort(list); System.out.println(dfw(list.size() - 1, 25)); } static int dfw(int idx, int v) { if (idx < 0) { return 0; } if (dp[idx][v] < 0) { if (v < list.get(idx).right) { dp[idx][v] = dfw(idx - 1, v); } else { dp[idx][v] = Math.max(dfw(idx - 1, v), dfw(idx - 1, list.get(idx).left) + list.get(idx).length); } } return dp[idx][v]; } static boolean isSorted(char[] chars) { char prev = 'a'; for (char c : chars) { if (c < prev) { return false; } prev = c; } return true; } static class Word implements Comparable<Word> { int left; int right; int length; public Word(int left, int right, int length) { this.left = left; this.right = right; this.length = length; } public int compareTo(Word another) { if (left == another.left) { return right - another.right; } else { return left - another.left; } } } } class Utilities { static String arrayToLineString(Object[] arr) { return Arrays.stream(arr).map(x -> x.toString()).collect(Collectors.joining("\n")); } static String arrayToLineString(int[] arr) { return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new)); } } class Scanner { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTokenizer(""); StringBuilder sb = new StringBuilder(); public Scanner() throws Exception { } public int nextInt() throws Exception { return Integer.parseInt(next()); } public long nextLong() throws Exception { return Long.parseLong(next()); } public double nextDouble() throws Exception { return Double.parseDouble(next()); } public int[] nextIntArray() throws Exception { return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray(); } public String next() throws Exception { while (!st.hasMoreTokens()) { st = new StringTokenizer(br.readLine()); } return st.nextToken(); } }